NWT Mountain Hardwear Crater Lake Short Sleeves women size M shirt, color is electrolyte. If you want it to fit like in the photo, then this Medium runs true to size. From Mountain Hard Wear: Start your workout session wearing the Mountain Hardwear Crater Lake™ Short Sleeve T-shirt. Slim-fit. Crew neckline with short sleeves. High-performance solar knit with UPF 50 filters harsh UV rays. Gusseted side panels for chafe-free comfort. Dropped back hem for extra coverage. Branding detail at front lower-left hem. Pull-on style. 88% polyester, 12% elastane. Machine wash, tumble dry. Imported.